Airbag control unit with part number CN15-14B321-CE

What does the airbag control unit CN15-14B321-CE do?

The airbag control unit CN15-14B321-CE is the central control unit of the restraint system (SRS) for Ford. It evaluates the signals from the crash sensors and determines in a crash which airbags and seatbelt pretensioners are triggered.

The unit monitors the entire system continuously. If it detects a fault, it reports this via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit CN15-14B321-CE fail?

The most common cause is stored crash data after an accident, even without an airbag trigger. Normal diagnostic tools cannot remove it. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data remains in the memory until it is deleted during the repair. Airbag24 takes care of this step.

The other triggers are unremarkable. Electronics age, solder joints can stay cold, and moisture causes the contacts to corrode.

Voltage spikes occur, for example, with a weak battery or when jump-starting.

How can you tell that the CN15-14B321-CE is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, an error message appears, and the diagnostic tool gets no connection. If the fault memory also cannot be cleared, the CN15-14B321-CE has a fault.

In an emergency, airbags and seatbelt pretensioners may then not be able to trigger. The warning light is therefore to be taken seriously and checked.

Which vehicles is the CN15-14B321-CE fitted in?

The airbag control unit CN15-14B321-CE is installed in vehicles from Ford. It is fitted in these vehicles: Ford EcoSport 2 (2012-2015).

The individual models are listed here:

• Ford EcoSport 2 (2012-2015)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Also have the fault memory read out in advance, because only the log shows whether the control unit itself or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers DN1T-14B321-EC, GN15-14B321-AF, GN15-14B321-GJ, GN1Z-14B321-AE, GN1Z-14B321-AK.

How does the repair of the CN15-14B321-CE work?

First have the fault memory read out, attach the log and disconnect the battery; only then is the CN15-14B321-CE removed. At Airbag24, processing usually takes 3–4 working days.

Then create a repair order online and pack the unit well before sending it.

Airbag24 checks the unit, replaces defective components, deletes stored crash data and carries out a function test. Afterwards your own unit is sent back to you.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit CN15-14B321-CE get to Airbag24?

You send the control unit CN15-14B321-CE in as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.